申请人:THE B.F. GOODRICH COMPANY
公开号:EP0282096A2
公开(公告)日:1988-09-14
When two 4-naphthoxyphenyl moieties are connected through a polar linking group, Y, it does not interfere with an oxidation process which results in dehydrogenative polymerization to yield polyarylene polyether (PAPE) polymers having a weight average mol wt greater than 10,000. Homo- and copolymers having a repeating unit in which a 4,4ʹ-di(1-naphthoxyphenyl) moiety is connected through its phenyl rings to a bivalent polar residue are descrbed. A specific monomer is selected from the group consisting of 4,4ʹ-di(1-naphthoxy)diphenyl sulfone (DNDPS, Y= SO₂) and, 4,4ʹ-di(1-naphthoxy)benzophenone (DNBP, Y= CO). Because the process provides thermoplastic PAPE polymers having a Tg in the range from about 250°C to about 350°C with excellent physical properties, the polymers are suitable for use in the fabrication of composites for aerospace vehicles subjected to elevated temperatures.
当两个 4-萘氧苯基分子通过极性连接基团 Y 连接时,不会干扰氧化过程,而氧化过程会导致脱氢聚合,生成平均摩尔质量大于 10,000 的聚芳基聚醚(PAPE)聚合物。描述了具有重复单元的均聚物和共聚物,在重复单元中,4,4ʹ-二(1-萘氧基苯基)分子通过其苯基环与二价极性残基相连。特定单体选自 4,4ʹ-二(1-萘氧基)二苯砜(DNDPS,Y= SO₂)和 4,4ʹ-二(1-萘氧基)二苯甲酮(DNBP,Y= CO)组成的组。由于该工艺提供的热塑性 PAPE 聚合物的 Tg 范围在约 250°C 至约 350°C 之间,且具有优异的物理性能,因此该聚合物适用于制造用于高温环境下航空航天飞行器的复合材料。